Add missing test for `SpatialSymbolicPermutation`

[kahaaga]

Add remaining analytical API method test for probabilities_and_outcomes

[codecov[bot]]

Codecov Report

Merging #224 (ede4b4b) into main (8ff6f7d) will increase coverage by 0.61%. The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #224      +/-   ##
==========================================
+ Coverage   84.43%   85.04%   +0.61%     
==========================================
  Files          45       45              
  Lines        1137     1137              
==========================================
+ Hits          960      967       +7     
+ Misses        177      170       -7     

Impacted Files	Coverage Δ
.../spatial_permutation/SpatialSymbolicPermutation.jl	89.18% <0.00%> (+18.91%)	:arrow_up:

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